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The 15 most toxic places to live

Earth's orbit

Believe it or not, even space contains copious amounts of pollution. An estimated 4 million pounds of space debris — nuts, bolts, metal and carbon, even whole spacecraft — currently orbit the Earth, threatening satellites, communication and even the lives of our astronauts. This computer-generated NASA graphic shows objects of space junk in Earth's orbit that are currently being tracked.

Earth's orbit

Believe it or not, even space contains copious amounts of pollution. An estimated 4 million pounds of space debris — nuts, bolts, metal and carbon, even whole spacecraft — currently orbit the Earth, threatening satellites, communication and even the lives of our astronauts. This computer-generated NASA graphic shows objects of space junk in Earth's orbit that are currently being tracked.